Spreader for tire casings and the like



Oct. 20, 1936. w. H. PEADEN ET AL 2,058,100

SPREADER FOR TIRE CASINGS AND THE LIKE Filed Oct. 51, 1935 3! as n r Peadea,

Patented Oct. 20, 1936 SPREADER FOR TIRE CASINGS AND THE LIKE- William H. Peaden, William H. Horster, and Arthur ODell, Tulsa, Okla, assignors to Tire Tools, Inc., a corporation of Oklahoma Application October 31, 1935, Serial No. 47,700

4 Claims. (01. 152-27) 7 This invention relates to Spreaders for tire casings and the like, and it is primarily an object of the invention tolprovide a device of this kind which isespecially designed. and adapted for use in inspecting. or repairing tire casings.

It is also an object of the invention to provide a device or apparatus of this kind whereby the 'desired spreading of the casing may be effected with but little effort on the part. of the operator,

together with means for effectively maintaining the casing inits spread or open position.

The invention consists in the details of construction andv in the combination and arrangement of the several parts of our improved spreader for tire casings and the like whereby certain important advantages are attained and the devicerendered simpler, less expensive and otherwise more conventient and advantageous for use, as will be hereinafter more'fully set forth.

The novel featuresof our invention will hereinafter'be definitely claimed. c

In order: that ourginvention may be the better understood, we will now proceed to describe the same with reference to the accompanying drawing, wherein:'-

Figure l is a view in side elevation and of somewhat a diagrammatic character with portions broken away; illustrating a spreader constructed in accordance withan embodiment of our invention, a second position of certain of the part being indicated by broken lines;

Figure 2 is a fragmentary sectional view taken substantially on the line 2--2 of Figure 1 with the tire casing omitted;

Figure 3 is a fragmentary sectional view taken substantially on the'line 33 of Figure 1 and on an enlarged scale.

As disclosed in the accompanying drawing, B denotes a base of desired dimensions and material and which is provided at suitably spaced points with the upstanding ears or lugs l to which are pivoted, as at 2, the lower end portions of the levers 3. Each of these levers is of desired length and is provided at its upper or free end portion with a socket 4 with which a handle member-5 may be detachably engaged and which is particularly desirable in obtaining increased leverage. This handle member 5 in itself constitutes a tool which is particularly adapted for use in removing a tire casing from its rim. The outer edge face of each of the levers 3 in its upper portion is provided with a notch 6 which is normally closed by a spring latch I. This latch I is held to the lever 3 by a bolt 8 or the like.

"Received within the notch 6 is a short cross member 9 connecting the outer extremities of the relatively short parallel arms which are in continuation of the inner extremities of the elongated diverging arms I I of a spreader hook H.

These arms I l havetheir outer or free extremities provided with the depending bills orlugs l2 .to engage with a side wall of a tire casing C and more particularlyan inner bead thereof. The arms In have close contact with the adjacent side faces of a lever 3 so that the spreader hook H in its entirety may be maintained in a raised or elevated position and which is particularly desired when placing the casing C in desired position for spreading between the levers 3.

With the hooks H properly engaged with the applied casing C an outward pull upon the levers 3 and preferably through the handle members 5, results in an effective spreading of'the casing C as is believed to be clearly indicated by broken linesin Figure 1 of the accompanying drawing. It is, of course, important and necessary that the casing C be maintained in spread adjustment to permit the desired inspection or repair and for this purpose each of the levers 3 haspivotally connected toitsupper portion, as at M, an end portion of an elongated arcuate ratchet bar I5.

This bar 15 extends outwardly from its lever 3 and is freely disposed through a slot or opening 16 provided in the upper partof an upstanding plate I! rigidly secured by welding or otherwise as may be preferred to the base I. The teeth l8 of the ratchet bar l are provided along the lower edge of said bar l5 and coact with the portion-of the plate I! adjacent the lower end of the opening or slot I6, said slot or opening I6 being of a length to permit free and unobstructed movement of the bar l5 through the plate II when pull is imposed upon the associated lever 3 torspread the casing C.

This ratchet bar l5 operates by gravity to provide an automatic means for locking its associated lever 3 in its various positions and in order to release the ratchet bar l5 to permit return swinging movement of the lever 3, a bar or lifting member I9 is pivotally connected, as at 20, to the plate H at a point below the opening or slot It so that upon upward swinging movement of the bar or lifting member I9 the ratchet member [5 will be raised into released position to allow return movement of the lever 3. The pivoted end portion of the bar or lifting member 19 is continued by a foot piece 2| which extends to one side of the plate I I so that the same may be readily engaged by the foot of the operator when it is desired to release the ratchet bar l5. The lifting member H! as particularly illustrated in Figure 1 is relatively broad so as not to interlock with the ratchet teeth IB and said lifting memher or bar 19 normally maintains by gravity its inoperative position as illustrated in Figure 3, such position being determined as illustrated in Figure 3 by contact of the foot piece 2| with a stop 22 such as a pin extending outwardly from the adjacent face of the plate I I.

From the foregoing description it is thought to be obvious that a spreader for tire casings and the like constructed in accordance with our invention is particularly well adap d for use by reason of the convenience and facilty with which it may be assembled and operated, and it will also be obvious that our invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason we do not Wish tobe understood as limiting ourselves to the precise arrangement and formation of the several parts herein shown in carrying out our invention in practice except as hereinafter claimed.

We claim:--

1. A tire casing spreader comprising a pair of levers having notches in the outer edge faces thereof, means for supporting said levers for swinging movement, spreader hooks, each of said spreader hooks being substantially V-shaped in form, the apex portion of each of said spreader hooks being formed to provide relatively short parallel arms for close contact with the adjacent side faces of a lever and with a short cross member connecting the outer extremities of the short parallel arms, said cross member seating within a notch of a lever.

2. A tire casing spreader comprising a pair of levers having notches in the outer edge faces thereof, means for supporting said levers for swinging movement, spreader hooks, each of said spreader hooks being substantially V-shaped in form, the apex portion of each of said spreader hooks being formed to provide relatively short parallel arms for close contact with the adjacent side faces of a lever and with a short cross member connecting the outer extremities of the short parallel arms, said cross member seating within a notch of a lever, and means carried by the levers for holding the arms of the spreader hooks within notches of the levers.

3. A tire casing spreader comprising a pair of levers having notches in the outer edge faces thereof, means for supporting said levers for swinging movement, spreader hooks, each of said spreader hooks being substantially V-shaped in form, the apex portion of each of said spreader hooks being formed to provide relatively short parallel arms for close contact with the adjacent side faces of a lever and with a short cross member connecting the outer extremities of the short parallel arms, said cross member seating within a notch of a lever, and means carried by the levers for holding the arms of the spreader hooks within notches of the levers, said last named means comprising spring latches.

4. A tire casing spreader comprising a base, a pair of upstanding levers, means for pivotally mounting the lower extremities of said levers upon the base at spaced points, a spreader hook operatively engaged with each of the levers, an elongated ratchet member pivotally connected with each of the levers and extending outwardly therefrom, upstanding plates mounted upon the base outwardly of the levers, a single plate being associated with each lever, each plate having an opening through which is freely directed the ratchet member pivotally connected to the adjacent lever, the teeth of the ratchet member coacting with the plate to hold the lever against return movement after being pulled in a direction to spread the casing, a bar associated with each plate, means for pivotally connecting anintermediate portion of the bar to the plate at a point below and to one side of the opening in the plate so that upon upward swinging movement of one end portion of the bar the adjacent ratchet member will be released from the plate, the portion of the bar contacting with the ratchet member being of sufficient width to avoid interlocking with the teeth of the ratchet member and to give sufficient weight to said end portion of the bar to more mally maintain the same in its lowered position, the opposite end portion of the bar constituting an operating element.

WILLIAM H. PEADEN. WILLIAM H. HORSTER. ARTHUR ODELL. 

